Osteoid-producing tumors of bone.

Osteoid-producing skeletal tumors are commonly encountered lesions by radiologists. Lesions include both benign tumors--osteoma, enostosis, osteoid osteoma, and osteoblastoma--as well as the malignant neoplasm, osteosarcoma. Radiologic features of these lesions are emphasized in this article and are frequently diagnostic. In addition, clinical characteristics, treatment, and prognosis are reviewed.